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  • Balleans, hyperballeans and ideals [Elektronski vir]
    Dikranjan, Dikran N., 1950- ...
    A ballean ▫$\mathcal{B}$▫ (or a coarse structure) on a set ▫$X$▫ is a family of subsets of ▫$X$▫ called balls (or entourages of the diagonal in ▫$X \times X$▫) defined in such a way that ... ▫$\mathcal{B}$▫ can be considered as the asymptotic counterpart of a uniform topological space. The aim of this paper is to study two concrete balleans defined by the ideals in the Boolean algebra of all subsets of ▫$X$▫ and their hyperballeans, with particular emphasis on their connectedness structure, more specifically the number of their connected components.
    Vir: Applied general topology [Elektronski vir]. - ISSN 1989-4147 (Vol. 20, no. 2, 2019, str. 431-447)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2019
    Jezik - angleški
    COBISS.SI-ID - 18846041

    Povezava(-e):

    https://doi.org/10.4995/agt.2019.11645
    DOI

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